diff --git a/lib/_stream_transform.js b/lib/_stream_transform.js
index ab6ada8dec0a4f..b4fffaa98891cd 100644
--- a/lib/_stream_transform.js
+++ b/lib/_stream_transform.js
@@ -209,9 +209,7 @@ function done(stream, er, data) {
   if (data != null) // Single equals check for both `null` and `undefined`
     stream.push(data);
 
-  // TODO(BridgeAR): Write a test for these two error cases
-  // if there's nothing in the write buffer, then that means
-  // that nothing more will ever be provided
+  // These two error cases are coherence checks that can likely not be tested.
   if (stream._writableState.length)
     throw new ERR_TRANSFORM_WITH_LENGTH_0();